The idea of a particle that races faster than light has long fascinated physicists. Known as the tachyon, it was originally ...

General relativity and gravity articles from across Nature Portfolio General relativity describes gravitation in a geometrical framework generalizing special relativity and classical mechanics.

That means returning from the moon, the Artemis astronauts will be traveling at around 0.0037% the speed of light. Assuming a ...

There are new hints that the fabric of space-time may be made of "memory cells" that record the whole history of the universe. If true, it could explain the nature of dark matter and much more ...

The awe-inspiring distances of the cosmos are hard to visualise, so how can we be certain we are measuring them correctly?

Orthodox quantum mechanics is empirically flawless, but founded on an awkward interface between quantum systems and classical ...

These are rare occurrences—scientists estimate that the giant black hole at the center of our Milky Way galaxy gobbles a star ...

Quantum technology will disrupt the Bitcoin network. Here’s how quantum computers affect crypto and what you can do about it.

The slower growth of gravitational wells and the accelerating expansion might share the same underlying cause.” In so many ...

Some physicists think our reality is a kind of cosmic hologram, with space, time, and gravity as manifestations of a ...

Quirks & Quarks features our ever-popular listener question show, where we find experts to answer your questions. But here are ten mysteries that science has yet to answer.

The James Webb Space Telescope (JWST), launched in 2022, continues to reshape how we view the cosmos. Designed to look deeper into space and further back in time than any previous instrument, it has ...